All patents must be novel. That is already a requirement!
The problem is, what is novel and not novel
depends on the inherent subjectivity of the patent examiner and judge.
So you can say well it has be "really novel" or "really really novel",
or "uber cool d00d", but it wouldn't matter. Dumb patents will get
through and people will be successfully sued for them.
Oh I must be "using" my patent? No problem! Set me set up a faux product page and sell something that vaguely uses my patent for 5 bazillion bucks. No sorry, any kind of "you must use it!" patent clause would be trivial for a patent troll to work around.
The only way to
stop this, and seriously, this is the only way, is to completely get
rid of software patents. Until then this will continue. I promise you.
The only worthwhile patent reform is eliminating the patentablity of software. Any other kind of "reform" will be worked around.